EP 2529097 A1 20121205 - SEALING ARRANGEMENT FOR A CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
Title (en)
SEALING ARRANGEMENT FOR A CONTROL DEVICE OF AN INTERNAL COMBUSTION ENGINE
Title (de)
DICHTUNGSANORDNUNG FÜR EINE REGELVORRICHTUNG EINER VERBRENNUNGSKRAFTMASCHINE
Title (fr)
ENSEMBLE D'ÉTANCHÉITÉ POUR UN DISPOSITIF DE RÉGLAGE D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102010006023 A 20100127
- EP 2010070056 W 20101217
Abstract (en)
[origin: WO2011091909A1] Sealing devices for control devices are known, having a housing (2), a channel (4) designed in the housing (2) and through which gas flows, a control member (6), by means of which a gas flow in the channel (4) can be controlled, a shaft (8), on which the control member (6) is arranged, and bearings (12), by means of which the shaft (8) is mounted in bearing bores (10) in the housing (2). In order to form a seal, a vent bore (14) is provided, which extends in the housing (2) from an inner wall (16) of the channel (4) on an inlet side of the control member (6) to a rear face (18), facing out from the channel (4), of the bearing (12) arranged in the housing (2), and into the bearing bore (10). This serves to avoid a leakage flow along the shaft (8). Nevertheless, the seal effect of such an arrangement is not satisfactory and is complex in design. According to the invention, viewed from the channel (4), behind the bearing (12), a circumferential groove (30) is designed on the shaft (8), wherein said circumferential groove is enclosed radially by a sealing means (22; 34) interacting with the groove (30). This improves the seal effect and assembly is simple.
IPC 8 full level
F02D 9/10 (2006.01); F16K 1/226 (2006.01)
CPC (source: EP US)
F02D 9/106 (2013.01 - EP US); F02M 26/70 (2016.02 - EP US); F16K 1/2268 (2013.01 - EP US); F16K 41/026 (2013.01 - EP US); F02D 9/04 (2013.01 - EP US); Y02T 10/12 (2013.01 - US)
Citation (search report)
See references of WO 2011091909A1
Citation (examination)
JP S556062 A 19800117 - AISIN SEIKI
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010006023 A1 20110728; DE 102010006023 B4 20120426; CN 102822476 A 20121212; CN 102822476 B 20150610; EP 2529097 A1 20121205; US 2013001882 A1 20130103; US 9267444 B2 20160223; WO 2011091909 A1 20110804
DOCDB simple family (application)
DE 102010006023 A 20100127; CN 201080065736 A 20101217; EP 10800918 A 20101217; EP 2010070056 W 20101217; US 201013521057 A 20101217